National Security

As U.S. becomes a ‘punching bag’ for foreign hackers, prosecutors increasingly move to file criminal charges against state-run hackers abroad. But U.S. cyber warriors worry that they may face retaliation, too, possibly ending up in a foreign jail cell.

Artificial intelligence may change societies, economies and militaries, and China wants to become the undisputed world leader in a competition that could mold the future of humankind just as the widespread arrival of electricity did in the last century.

A debate about the scope of government spying ricocheted around Washington on Thursday, with seesaw presidential tweets and impassioned debate on Capitol Hill that culminated with a House vote to extend and expand massive U.S. surveillance powers.